Home / 914,281.20-1,371,421.80-778,978.80

Finding the Fourth Proportional to 914,281.20, 1,371,421.80 and 778,978.80

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Solution

The fourth proportional to 914,281.20, 1,371,421.80 and 778,978.80 is: 1,168,468.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    914,281.20 : 1,371,421.80 = 778,978.80 : x
  2. Step 2: Convert to fraction form
    914,281.20/1,371,421.80 = 778,978.80/x
  3. Step 3: Cross multiply
    914,281.20x = 1,371,421.80 × 778,978.80
  4. Step 4: Simplify right side
    914,281.20x = 1,068,308,508,057.84
  5. Step 5: Solve for x
    x = 1,068,308,508,057.84/914,281.20
  6. Step 6: Final answer
    x = 1,168,468.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.